The Triumph 3HW was a military-spec motorcycle manufactured by the Triumph Engineering Company during the Second World War. Officially introduced around 1942, it served as one of the key motorcycles for the British Armed Forces, particularly the Royal Navy and other Allied services. This model was developed from the pre-war Triumph Tiger 80 and designed to handle demanding wartime logistics and despatch duties. The Triumph 3HW remained in production through the early to mid-1940s but was discontinued after the war ended, as peacetime demand and technological evolution rendered many war-focused machines obsolete.
The end of the Triumph 3HW's production was also influenced by the destruction of Triumph's Coventry factory in air raids during 1940. Production was later shifted to Meriden, where Triumph continued its operations. However, post-war market dynamics, metal shortages, and the arrival of more advanced motorcycle models led to the discontinuation of the 3HW. In today's market, Triumph continues to sell modern motorcycles in Pakistan like the Triumph Speed Twin 1200 and Triumph Trident 660, but the 3HW remains a historical model with no direct successor.
Triumph 3HW Specs
The Triumph 3HW was engineered with wartime reliability and simplicity in mind. It featured an over-head valve (OHV) single-cylinder, four-stroke engine with a displacement of 343cc (often rounded as 342cc). It had a bore of 70mm and a stroke of 89mm, offering a balanced torque output suited for rugged terrains.
The transmission was a 4-speed manual gearbox. Its final drive system was chain-based, a standard feature for its era. The motorcycle's total weight was approximately 145 kg, making it both manageable and sturdy for military riders. The top speed recorded was approximately 115 km/h.
As for its chassis, the Triumph 3HW used web girder forks in the front and a rigid rear suspension. The tyres were uniform, 3.25 x 19 on both the front and rear wheels, ensuring ease of replacement and consistent handling. It measured 2083 mm in length and had a wheelbase of 1334 mm. The fuel tank had a capacity of 14.2 litres, suitable for extended travel without frequent refuelling.
The motorcycle had a compression ratio of 6.7:1. The frame was constructed primarily of steel. However, some models initially used aluminium components, which were later replaced by cast iron due to wartime shortages. The Triumph 3HW's rugged build, simple mechanics, and durable materials made it well-suited to the harsh conditions it was deployed in.
Triumph 3HW Design and Features
The Triumph 3HW's design was minimalistic and functional, built specifically to serve military objectives. It borrowed heavily from the civilian Tiger 80 model but was adapted for military use with a stronger frame and simplified controls. It had a rigid, durable structure with a utilitarian appeal, practical rather than stylish.
Its fuel tank was typically painted in olive drab or black, sometimes with a matte finish to reduce reflection and visibility in battlefield conditions. The saddle seat was made of leather, suspended by springs for basic rider comfort. The handlebars were broad and upright, facilitating a comfortable riding posture, especially during long dispatch rides.
A kick-starter was used to ignite the engine, and the gearbox shift was manually operated. Lighting was basic, typically limited to a single headlamp, often covered or modified to comply with blackout requirements during war.
The dashboard instrumentation was also limited, typically consisting of a simple speedometer and ignition switch. Indicators and modern conveniences were absent. Simplicity was the hallmark of the 3HW's design philosophy, focusing on reliability under extreme conditions rather than rider luxury or aesthetics.
Triumph 3HW Fuel Average
The Triumph 3HW had a real-world fuel consumption rate of approximately 3.5 litres per 100 kilometres. When converted to local units, this yields a fuel average of roughly 28.5 km/l. This is quite respectable given its age and engine capacity. The fuel efficiency was optimised for long-distance dispatch riding during wartime, where fuel rationing and refuelling opportunities were scarce.
It's important to note that this figure is based on well-maintained or restored units. Older or unrestored bikes may perform below this level depending on the condition of the engine, carburettor, and other mechanical systems. With regular tuning and suitable riding conditions, owners can still achieve fuel consumption close to the original factory average.
Triumph 3HW Competitors
During its active years in the 1940s, the Triumph 3HW faced competition primarily from other military and utilitarian motorcycles. Notable contemporaries included the BSA M20, which also served extensively during World War II and had a similar single-cylinder, four-stroke configuration. Another significant rival was the Norton 16H, widely used by the British Army and known for its durability.
In the post-war era, as civilian production resumed, the Triumph 3HW would have been in the same segment as bikes like the Matchless G3/L and Royal Enfield WD/CO. These models were also derived from military use and adapted for the civilian market. While these motorcycles varied in technical specifications, they all shared a utilitarian design and purpose-driven engineering.
In the Pakistani market, the 3HW didn't face direct competition due to its limited and niche availability. However, in recent years, vintage motorcycle collectors often compare it with classic offerings from BSA, Jawa, and early Honda bikes like the Honda CB series that appeared in the 1960s and 1970s.
Is Triumph 3HW worth buying?
As of 2025, the Triumph 3HW is certainly not a motorcycle for regular commuting or modern-day usage, but it holds strong value for collectors, restoration experts, and vintage motorcycle enthusiasts in Pakistan. Its historical significance, durable build, and wartime legacy make it an appealing option for those who appreciate classic engineering and military heritage.
Spare parts are not commonly available in local markets and may need to be imported or custom-fabricated. However, some collectors and workshops in Pakistan do specialise in British vintage bikes, which can aid in restoration and upkeep. Resale value is pretty strong in collector circles, particularly if the bike retains original components or has been restored authentically.